Home / 20,027.97-27,640.65-11,530.41

Finding the Fourth Proportional to 20,027.97, 27,640.65 and 11,530.41

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Solution

The fourth proportional to 20,027.97, 27,640.65 and 11,530.41 is: 15,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,027.97 : 27,640.65 = 11,530.41 : x
  2. Step 2: Convert to fraction form
    20,027.97/27,640.65 = 11,530.41/x
  3. Step 3: Cross multiply
    20,027.97x = 27,640.65 × 11,530.41
  4. Step 4: Simplify right side
    20,027.97x = 318,708,027.17
  5. Step 5: Solve for x
    x = 318,708,027.17/20,027.97
  6. Step 6: Final answer
    x = 15,913.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.